Morris.Line 图表 x 和 y 轴标签未显示

Morris.Line graph x and y axis label are not being displayed

我有一个像这样的莫里斯双线图:

var lineGraph = Morris.Area({
    element: 'graph_line',
    xkey: 'Date',
    ykeys: ['Sales', 'Revenue'],
    labels: ['Sales','Revenue'],
    fillOpacity: '0.7',
    gridTextFamily: 'mtsRegular',
    hideHover: 'auto',
    lineWidth: '1px',
    lineColors: ['#076178','#1ecee8'],
    pointFillColors: ['#fff'],
    pointStrokeColors: ['#012e42'],
    data: [@Html.Raw(ViewBag.LineGraph)],
    resize: true
});

并且在渲染图形后,它缺少 x 轴和 y 轴标签...看起来如下所示:

我在这里错过了什么?有人可以帮我吗?

@Mohamed这里是ViewBag.LineGraph的内容:

{ Date: '2018-08-06', Sales: 1, Revenue: 9.75 },
{ Date: '2018-08-08', Sales: 1, Revenue: 21.03 },
{ Date: '2018-08-09', Sales: 1, Revenue: 4.75 },
{ Date: '2018-08-12', Sales: 1, Revenue: 27.66 },
{ Date: '2018-08-13', Sales: 3, Revenue: 63.33 },
{ Date: '2018-08-16', Sales: 2, Revenue: 192.29 },
{ Date: '2018-08-18', Sales: 2, Revenue: 47.37 },
{ Date: '2018-08-19', Sales: 1, Revenue: 28.94 },
{ Date: '2018-08-20', Sales: 1, Revenue: 66.09 },
{ Date: '2018-08-21', Sales: 1, Revenue: 24.73 },
{ Date: '2018-08-22', Sales: 4, Revenue: 93.53 },
{ Date: '2018-08-23', Sales: 1, Revenue: 27.59 },
{ Date: '2018-08-25', Sales: 2, Revenue: 142.52 },
{ Date: '2018-08-26', Sales: 1, Revenue: 24.77 },
{ Date: '2018-08-27', Sales: 3, Revenue: 69.79 },
{ Date: '2018-08-29', Sales: 2, Revenue: 67.63 },
{ Date: '2018-08-30', Sales: 1, Revenue: 15.3 },
{ Date: '2018-09-01', Sales: 1, Revenue: 73.69 },
{ Date: '2018-09-02', Sales: 4, Revenue: 270.38 },
{ Date: '2018-09-03', Sales: 2, Revenue: 50.07 }

我工作正常吗?

var lineGraph = Morris.Area({
                element: 'graph_line',
                xkey: 'Date',
                ykeys: ['Sales', 'Revenue'],
                labels: ['Sales','Revenue'],
                fillOpacity: '0.7',
                gridTextFamily: 'mtsRegular',
                hideHover: 'auto',
                lineWidth: '1px',
                lineColors: ['#076178','#1ecee8'],
                pointFillColors: ['#fff'],
                pointStrokeColors: ['#012e42'],
                data: [{ 'Date': '2018-08-06', Sales: 1, Revenue: 9.75},{ Date: '2018-08-08', Sales: 1, Revenue: 21.03},{ Date: '2018-08-09', Sales: 1, Revenue: 4.75},{ Date: '2018-08-12', Sales: 1, Revenue: 27.66},{ Date: '2018-08-13', Sales: 3, Revenue: 63.33},{ Date: '2018-08-16', Sales: 2, Revenue: 192.29},{ Date: '2018-08-18', Sales: 2, Revenue: 47.37},{ Date: '2018-08-19', Sales: 1, Revenue: 28.94},{ Date: '2018-08-20', Sales: 1, Revenue: 66.09},{ Date: '2018-08-21', Sales: 1, Revenue: 24.73},{ Date: '2018-08-22', Sales: 4, Revenue: 93.53},{ Date: '2018-08-23', Sales: 1, Revenue: 27.59},{ Date: '2018-08-25', Sales: 2, Revenue: 142.52},{ Date: '2018-08-26', Sales: 1, Revenue: 24.77},{ Date: '2018-08-27', Sales: 3, Revenue: 69.79},{ Date: '2018-08-29', Sales: 2, Revenue: 67.63},{ Date: '2018-08-30', Sales: 1, Revenue: 15.3},{ Date: '2018-09-01', Sales: 1, Revenue: 73.69},{ Date: '2018-09-02', Sales: 4, Revenue: 270.38},{ Date: '2018-09-03', Sales: 2, Revenue: 50.07}],
                resize: true

            });
<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/morris.js/0.5.1/morris.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/raphael/2.1.0/raphael-min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/morris.js/0.5.1/morris.min.js"></script>


<div id="graph_line" style="height: 250px;"></div>